raNVMe-IP with multiple user reference design manual
●While raNVMe-IP standard demo is designed to show the performance of random access from the user by using random address, created by LFSR equation, raNVMe-IP with multiple user demo is designed to use the random feature for accessing different area by the different user, as shown in Figure 1-1.The demo is designed to support up to four users at the same time.
●In multiple user demo, the start address of each user and transfer length of each user are different value. For reducing the number of parameters from the user in the test, the start address and the length of each user in Write/Read command is calculated by the firmware and the user sets only start address of the first user and total transfer length. Nevertheless, the user can modify the firmware to set the start address and transfer length of each user independently which are aligned to 4 KB unit.
●After getting the parameters of each user, Write/Read command is split into many 4 KB Write/Read commands to raNVMe-IP. According to raNVMe-IP specification, Write and Read command are multiple command type which can be sent many requests at the same time.If the command from each user is different or the command is single command (Identify, SMART, Shutdown or Flush), only one command is sent to raNVMe-IP at a time.The example application for using multiple user demo is shown in Figure 1-2.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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7-Jan-21 |
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Rev1.0 |
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2.3 MB |
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